JP3068759B2 - 無線周波数スペクトルを用いた通信システム - Google Patents

無線周波数スペクトルを用いた通信システム

Info

Publication number
JP3068759B2
JP3068759B2 JP6292026A JP29202694A JP3068759B2 JP 3068759 B2 JP3068759 B2 JP 3068759B2 JP 6292026 A JP6292026 A JP 6292026A JP 29202694 A JP29202694 A JP 29202694A JP 3068759 B2 JP3068759 B2 JP 3068759B2
Authority
JP
Japan
Prior art keywords
radio frequency
downstream
upstream
frequency signal
surface acoustic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP6292026A
Other languages
English (en)
Japanese (ja)
Other versions
JPH07240730A (ja
Inventor
イー． ダーシー トーマス
ピー． カミノフ イワン
マルコス デートリッチ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Publication of JPH07240730A publication Critical patent/JPH07240730A/ja
Application granted granted Critical
Publication of JP3068759B2 publication Critical patent/JP3068759B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
    • G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
    • G02B6/12019—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057—Operations, administration and maintenance [OAM]
    • H04J2203/006—Fault tolerance and recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Optical Communication System (AREA)
  • Optical Integrated Circuits (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
JP6292026A 1993-11-03 1994-11-02 無線周波数スペクトルを用いた通信システム Expired - Lifetime JP3068759B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/147,652 US5483369A (en) 1993-11-03 1993-11-03 Communication systems using passive RF routing
US147652 1993-11-03

Publications (2)

Publication Number Publication Date
JPH07240730A JPH07240730A (ja) 1995-09-12
JP3068759B2 true JP3068759B2 (ja) 2000-07-24

Family

ID=22522369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6292026A Expired - Lifetime JP3068759B2 (ja) 1993-11-03 1994-11-02 無線周波数スペクトルを用いた通信システム

Country Status (4)

Country Link
US (1) US5483369A (fr)
EP (1) EP0651530A3 (fr)
JP (1) JP3068759B2 (fr)
CA (1) CA2129603C (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6386896A (en) * 1995-06-22 1997-01-22 Scientific-Atlanta, Inc. Hybrid fiber coax communications system
US5872815A (en) * 1996-02-16 1999-02-16 Sarnoff Corporation Apparatus for generating timing signals for a digital television signal receiver
US5943150A (en) * 1996-09-30 1999-08-24 Regents Of The University Of California Massively parallel processor networks with optical express channels
WO1998019409A2 (fr) 1996-10-15 1998-05-07 The Regents Of The University Of California Processeurs rapides fonctionnant en simultaneite sur la base d'interconnexions optiques a multiplexage par repartition en longueur d'onde et a couplage en etoile
US6094285A (en) * 1996-12-04 2000-07-25 Trw Inc. All optical RF signal channelizer
US5963561A (en) * 1996-12-05 1999-10-05 At&T Corp. Method and apparatus for bandwidth reuse in a communication network
US6208062B1 (en) * 1997-08-18 2001-03-27 X-Cyte, Inc. Surface acoustic wave transponder configuration
FR2772144B1 (fr) * 1997-12-08 2000-02-25 France Telecom Dispositif d'echange de signaux optiques a travers une fibre optique
US6023544A (en) * 1997-12-24 2000-02-08 Lucent Technologies Inc. Monitoring with an optical wavelength router
KR100274804B1 (ko) * 1998-04-22 2001-01-15 윤종용 양방향 광파장 다중화기/분할기
US6639990B1 (en) 1998-12-03 2003-10-28 Arthur W. Astrin Low power full duplex wireless link
US6594049B1 (en) * 1999-10-29 2003-07-15 Lucent Technologies Inc. Optical router
US6512864B1 (en) * 2000-06-08 2003-01-28 Lucent Technologies Inc. Optical multiplexer/demultiplexer arrangement for WDM signals having in-band and out-of-band signal components
US7783195B2 (en) 2006-07-07 2010-08-24 Scientific-Atlanta, Llc Format converter with smart multitap with digital forward and reverse
US7903972B2 (en) 2006-07-07 2011-03-08 Riggsby Robert R Format converter with smart multitap
US7885542B2 (en) 2006-07-07 2011-02-08 Riggsby Robert R Format converter with smart multitap and upstream signal regulator
EP2141833B1 (fr) * 2008-07-04 2013-10-16 Nokia Siemens Networks Oy Modulateur I-Q optique
CN102318364B (zh) * 2011-07-29 2014-06-04 华为技术有限公司 光交换设备及信号交换系统
DE102013206723B4 (de) * 2013-04-15 2022-07-07 Marco Systemanalyse Und Entwicklung Gmbh Steuersystem

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942140A (en) * 1974-11-08 1976-03-02 The United States Of America As Represented By The Secretary Of The Air Force Method and means for coupling a multiplicity of surface acoustic wave transducers to a single electromagnetic wave transmission line
US4773063A (en) * 1984-11-13 1988-09-20 University Of Delaware Optical wavelength division multiplexing/demultiplexing system
US4639695A (en) * 1985-06-25 1987-01-27 The United States Of America As Represented By The Secretary Of The Army Wideband saw channellizer using slanted array input transducer
US4746882A (en) * 1987-06-24 1988-05-24 Unisys Corporation Saw multiplexer using tapered transducers
US4947073A (en) * 1988-02-04 1990-08-07 Trw Inc. Saw channelized filters
JPH0286384A (ja) * 1988-09-22 1990-03-27 Pioneer Electron Corp 動画像情報サービスシステム及び該システム用ヘッドエンド装置
US4952833A (en) * 1989-03-22 1990-08-28 Westinghouse Electric Corp. High density surface acoustic waveguide channelizer
US5054873A (en) * 1989-12-04 1991-10-08 Northrop Corporation High density integrated optical multiplexer/demultiplexer
US5002350A (en) * 1990-02-26 1991-03-26 At&T Bell Laboratories Optical multiplexer/demultiplexer
US5245404A (en) * 1990-10-18 1993-09-14 Physical Optics Corportion Raman sensor
US5136671A (en) * 1991-08-21 1992-08-04 At&T Bell Laboratories Optical switch, multiplexer, and demultiplexer

Also Published As

Publication number Publication date
JPH07240730A (ja) 1995-09-12
US5483369A (en) 1996-01-09
CA2129603A1 (fr) 1995-05-04
CA2129603C (fr) 1999-02-16
EP0651530A2 (fr) 1995-05-03
EP0651530A3 (fr) 1995-08-09

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